Photonic Molecular Science Laboratory
|Staff & Contact|
|Educational Staff||Prof. Tsuyoshi Kawai
Associate Prof. Takuya Nakashima
Assistant Prof. Yoshiyuki Nonoguchi, Mihoko Yamada
Education and Research Activities in the Laboratory
Research activity of this laboratory is focused on “Photonic Molecular Science”, a new research field covering molecules, polymers, coordination compounds and low-dimensional nanomaterials with advanced photo-functionality. We accept students who have been educated in related fields such as chemistry, applied physics, material science and electronic engineering in Japanese and overseas universities. Students are trained in organic and inorganic syntheses and characterization methods, which are essential for developing future advanced materials and devices with photo-functionality. We welcome ambitious students with high motivation, flexibility, and positive attitudes to address new scientific challenges while taking advantage of their educational backgrounds and scientific interests in materials science.
1. Photoresponsive molecules based on terarylene structures for photon quantitative reactions, photoacid generators (PAGs), ultra-efficient oxidative cycloreversion, and photoswitching of circularly polarized luminescence (CPL)
2. Nanoparticles chemistry through surface molecular design for self-assembly, chiral chemistry, and composite materials
3. Supramolecular functionalization of carbon nanotubes for thermoelectric energy conversion
Explanatory Pictures of Research Activities
Fig.1 Schematic illustration for photoisomerization reactions of our unique photochromic molecule, which exhibits photoreaction with quantum yield of unity, a “photon-quantitative reaction”
- Fig. 2 TEM images of Self-assembling structures of amphiphilic semiconduc¬tor nanoparticles with rod-(left) and tetrapod-(right) shape.
- Fig. 3 A representative concept for su¬pramolecular n-type doping of carbon nanotubes.
Recent Research Papers and Achievements
1. T. Nakashima, K. Tsuchie, R. Kanazawa, R. Li, S. Iijima, O. Galangau, T. Kawai et al., “Self-Contained Photoacid Generator Triggered by Photocyclization of Triangle Terarylene Backbone”, J. Am. Chem. Soc. 137 7023-7026 (2015).
2. J. Kumar, H. Tsumatori, J. Yuasa, T. Kawai, T. Nakashima, “Self-Discriminating Termination of Chiral Supramolecular Polymerization: Tuning the Length of Nanofiber”, Angew. Chem. Int. Ed. 54, 5943-5947 (2015).
3. Y. Taniguchi, T. Takishita, T. Kawai, T. Nakashima, “End-to-End Self-Assembly of Semiconductor Nanorods in Water by using an Amphiphilic Surface Design”, Angew. Chem. Int. Ed., 55, 2083-2086 (2016)
4. Y. Nonoguchi, M. Nakano, T. Murayama, H. Hagino, S. Hama, K. Miyazaki, R. Matsubara, M. Nakamura, T. Kawai, “Simple Salt-coordinated n-Type Nanocarbon Materials Stable in Air”, Adv. Funct. Mater., 26, 3021-3028 (2016)